Best 20-inch Mountain Bikes for Kids


We have compiled the list of our favorite 20-inch mountain bikes for kids. Are you hoping to get your kid a bike they can take out on the trails this year? The 20-inch bikes on our list might be a great fit for your 5, 6, 7 or 8-year-old rider.

Bike fit is an essential aspect of choosing the right bike. Look for a frame with a stand-over height that will allow your kid to stand astride the bike with both feet flat on the ground, for optimal comfort and safety. To determine the stand-over height, find your rider’s inseam measurement by measuring the length of the leg on the inside from crotch to ankle.

Best 20-inch mountain bikes for kids

20-inch wheels give young riders plenty of control and nimble turning, but without being too small to roll over rocks and roots on the trail. Luckily, there are many good 20” wheel kids’ bikes to choose from. Check out Ten Things to Know Before You Buy a Kid’s Mountain Bike

Here is an overview of our top 20-inch wheel bikes for 5, 6, 7 or 8 year old kids. Check out the comparison table at the end of the article to see all the size, cost and other data in one place.

Prevelo Zulu Three Mountain Bikes for Kids 5-8 Years-old

Prevelo Zulu Three

If you’re looking for high-performance mountain bike features on a 20-inch wheel size package, the Zulu Three is a great option. Each component is the real deal and has been carefully chosen to provide the best performance and fit for young riders ready to tear up the trails. Firstly, low and narrow Prevelo geometry keeps the rider low, balanced, and in control. Secondly, Tektro front and rear hydraulic disc brakes make speed control and stopping easy. Thirdly, the specially designed Shimano ZEE 10-speed drivetrain and derailleur. Importantly, this amazing component features a clutch that can be turned on with the flip of a switch to eliminate derailleur bounce over hard terrain and reduce chain drops. This bike is one of the best 20-inch mountain bikes for kids 5-8 years old!

Buy this kids’ mountain bike from:

Stand-over Height21.5 inches
Drivetrain1 x 10
Frame Material99M Series heat treated aluminum alloy custom formed
Claimed Weight22.2 pounds
ForkSpinner 300 20 AIR - 80mm travel
ShifterSRAM GX Trigger

Cleary Bikes Owl 20-inch 3 speed Mountain Bikes for Kids 5-8 Years-old

Cleary Owl 20 3-Speed

Watch your kid’s confidence and coordination improve as they master gears with the Cleary Bikes Owl 20in 3 Speed Kids’ Bike. Cleary designs bikes that have lots of features to love. First, the Owl frame and fork are lightweight and built to withstand anything your kid can dish out. Second, the geometry is optimized to ideally respond to steering inputs while remaining stable. Third, there are only three gears, so it isn’t overwhelming. The Cleary Bikes Owl best fits young adventurers with an inseam measurement between 19 and 23in. In conclusion, the lightweight construction and reliable components create a bike that’s ready to guide your little shredder around the neighborhood and on the trails.

Above all, Cleary designs bikes for kids of every size and ability to ride safely and comfortably. Note: steel is strong and tough. Cleary bikes have no rider weight limit and are able to survive anything your kids can dish out. This bike is also available in a 3-speed model.

Buy this kids’ mountain bike from:

Stand-over Height19.3 inches
Frame MaterialSteel
BrakesTektro V-Brakes
Claimed Weight19 lbs
Shifter3-Speed Sturmey Archer

Co-op Cycles REV 20 6-Speed Plus Kids’ Bike

Keeping it light, simple, and stable, the Co-op Cycles REV 20 6-speed bike has plus-size tires and disc brakes to give kids the traction, stopping power, and confidence to learn the joys of singletrack. The 6061 aluminum frame is light, strong, and easy to manage. The 6-speed drivetrain is controlled with a single, intuitively easy-to-use Shimano Revo twist shifter; a flick of the wrist changes gears for easy pedaling. Mechanical disc brakes provide quick response and sure-stopping power. Extra-wide, 2.6 in. all-terrain tires soften the little bumps and stick to the trail for a smooth, stable ride.

Buy this kids’ mountain bike from:

Stand-over Height18 inches
Drivetrain1 x 10
Frame Material6061Aluminum Alloy
BrakesMechanical Disc Brakes
Claimed Weight23 lbs. 15.8 oz.
ShifterShimano Tourney Revo Twist

trailcraft blue sky 20 inch mountain bike

Trailcraft Blue Sky 20 Mountain Bike

The Blue Sky 20 is a 20″ bike from Trailcraft has super light components.  This bike includes a  TC30 carbon fiber suspension fork, Superlight wheels, and alloy spindle direct mount cranks. The Blue Sky 20 is one of the only in the category which takes a water bottle. This is a fun, playful bike for all types of mountain bike riding.  Race it, take it to parks, or just have an awesome bike to trail ride with your family.  Next-level big-kid performance is achieved with high-quality top-shelf level components and category-leading bike weights. The Blue Sky is one of the lightest 20-inch mountain bikes for kids.

Buy this kids’ mountain bike from:

Stand-over Height20 inches
Drivetrain1 x 11
Frame Material7005 Aluminum/Alloy
BrakesShimano Deore Hydraulic
Claimed Weight20.2 pounds tubeless
ForkTC30 air sprung suspension 80mm fork
ShifterShimano Deore 4100
Woom OFF 4 mountain bike for 8 year old kids

Woom OFF 4

The Woom OFF 4 gives children aged six years and older a super light and durable mountain bike for their first go on the pump track and easy cruising through forests and fields. The kink in the top tube makes it easy to get on and off quickly in any situation, thereby giving kids greater safety out and about on the trails. The perfect introduction to mountain biking. The Woom OFF 4 has 9 speeds easily accessed with a SRAM trigger shifter. This bike only weighs 17 pounds! The Woom OFF 4 is a great fit for kids 6 – 8 years old who are 46″ – 51″ inches tall.

Buy this kids’ mountain bike from:

Stand-over Height19.5 inches
Drivetrain1 x 9
Frame MaterialAluminum/Alloy
BrakesHydraulic disc brakes from Promax
Claimed Weight17.2 lbs
ShifterSRAM X5 Trigger
Specialized Jett 20 Mountain Bikes for Kids 5-8 Years-old

Specialized Jett 20in Bike – Kids’

Designed around adjustability to grow with our little ones, we know our kiddos will be all over their Jett 20in Bike for multiple summers of pedaling around the lake and skidding around the driveway. Specialized designed this version of the Jett for children ranging from 7 to 10 years of age, and with adjustable handlebar reach, seat-post length, and crankarm length, it just might last your aspiring cyclist all three of those years. Every component on this bike from the saddle, to the short-reach brake levers, and narrow-diameter grips were developed using information from the Retül research group to perfectly function with smaller bodies, limbs, and hands. This all-arounder features a lightweight component set designed to enhance the maneuverability of the bike for lighter kids. The nylon pedals are included and they have reflectors for improved safety around town.

Buy this kids’ full suspension bike from:

Saddle Height22 inches
Drivetrain1 x 10
Frame MaterialA1 Premium Butted Alloy
Claimed Weight?
ShiftermicroSHIFT TS39, 7-speed

Marin San Quentin 20-inch kids’ mountain bike

The Marin San Quentin 20″ Bike is a lightweight and durable mountain bike. It has modern trail geometry with a slack front end and a balanced rider position. The 6061 aluminum frame comes with disc brakes, 80mm of travel on the front, wide tire clearance for up to 2.6″ tires, and a 1x-specific setup. The 20″ version of the Marin San Quentin comes with a Shimano Altus 8-speed drivetrain. This includes a wide-range 11-32T gear range that makes climbing and pedaling through rough terrain a breeze. Tektro hydraulic disc brakes provide reliable stopping power in various conditions. With the Marin double-wall alloy rims paired with Vee Tire Crown Gem tires, your young rider will have exceptional traction anywhere they go.

Buy this kids’ mountain bike from:

Stand-over Height21 inches
Drivetrain1 x 8
Frame MaterialAluminum/Alloy
Claimed Weight
ForkSR Suntour 80mm travel
ShifterShimano Altus Shifter
norco fluid 20 inch mountain bike full suspension

Norco Fluid FS 2.1 20-inch mountain bike

The Norco Fluid FS 2.1 Bike was designed with a lower standover height allowing smaller riders to be comfortable getting on and off the saddle. It has a lightweight aluminum frame and has 120mm of travel on the front suspension and 100mm of travel on the rear. The 2.1 version of the Norco Fluid FS comes with a SRAM GX 10-speed drivetrain. The gearing is perfect for climbing and all-day adventures with an 11-36T cassette on the rear. Shimano BR-MT500 hydraulic disc brakes provide highly reliable stopping power so your young rider can stop with confidence. Sun Ringle Duroc 30 Kids rims are paired with Vee Rubber Crown Gem tires. The rims can be set up tubeless with the right tires so you can ditch the tubes for a smoother ride, better traction, and fewer flats.

Buy this kids’ mountain bike from:

Stand-over Height19.7 inches
Drivetrain1 x 10
Frame MaterialAluminum/Alloy
Brakeshydraulic disc
Claimed Weight?
ForkManitou J-Unit 20
ShifterSRAM GX trigger
spawn yama jama 20 mountain bike for kids

Spawn Yama Jama 20

The Yama Jama 20″ raises the bar for kids’ trail bikes. The 6061-T6 alloy frame includes an internal routing option for dropper posts. The Brood Bike Co. Eldorado fork provides 80mm of plush, nearly stiction-free travel. The drivetrain utilizes a SRAM GX derailleur and shifter combo and an 11-36T 10 speed SRAM cassette. Stopping is handled by powerful Tektro Auriga hydraulic disc brakes. The Yama Jama uses Brood Bike Co. tubeless-ready rims with a wide profile and tops it off with the amazing Brood Maxtion foldable, tubeless-ready tire.

Buy this kids’ mountain bike from:

Stand-over Height21 inches
Drivetrain1 x 10
Frame Material6061 aluminum alloy
BrakesTektro M285, hydraulic disc
Claimed Weight?
ForkBrood ElDorado 80mm
ShifterSRAM GX

Comparison chart: Best 20-inch wheel mountain bikes for kids (5-8 years old)

Prevelo Zulu Three21.5 inches1 x 1099M Series heat treated aluminum alloy custom formedHydraulic disc brakes22.2 lbsSpinner 300 20 AIR - 80mm travel- 80mm travelSRAM GX Triggernone
Cleary Owl 20 3-Speed19.3 inches1 x 3SteelV Hand19 lbsrigid3-Speed Sturmey Archernone
Co-op Cycles REV 20 6-Speed Plus18 inches1 x 106061 Aluminum AlloyMechanical disc brakes23 lbs. 15.8 ozrigidShimano Tourney Revo Twistnone
Trailcraft Blue Sky 2020 inches1 x 117005 Aluminum AlloyShimano Deore Hydraulic20.2 lbsTC30 air sprung suspension 80mm forkShimano Deore 4100none
Woom 419.5 inches1 x 8Aluminum AlloyV Hand17.9 lbsrigidSRAM X4 Twistnone
Specialized Jett 2022 inches1 x 106061Aluminum AlloyV hand?rigidmicroSHIFT TS39none
Cannondale Trail 2020.5 inches1 x 76061 Aluminum AlloyV Hand24 lbsrigidShimano Tourney Revo Twistnone
Rossignol Mandate Jr 2022 inches1 x 96061 Aluminum AlloyTektro M285, hydraulic disc?SR Suntour XCR Air, 80 mmShimano Alivio M3100SR Suntour Raidon R
Spawn Yama Jama21 inches1 x 106061 Aluminum AlloyTektro M285, hydraulic disc?BROOD ELDORADO, 80mmSRAM Dxnone